/*
 * Copyright 2008 Max Kugland
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.splink.library.utils {
	import flash.net.registerClassAlias;	import flash.utils.ByteArray;	

	/**
	 * Utility methods for objects.
	 * 
	 * @author Max Kugland
	 */
	public class ObjectUtils {
		/**
		 * Creates a clone of an object and keeps its type. Note that the object to be cloned
		 * can't have any constructor arguments.
		 * 
		 * @param obj the object to be cloned
		 * @param aliasName the fully qualified classname of the object to be cloned
		 * @param clazz the Class to which the the object belongs
		 */
		public static function clone(obj : *, clazz : Class = null, aliasName : String = null) : * {
			if(clazz && aliasName) {
				registerClassAlias(aliasName, clazz);
			}
			var byteArray : ByteArray = new ByteArray();
			byteArray.writeObject(obj);
			byteArray.position = 0;
			return byteArray.readObject();
		}
	}
}
